Sphalerite from the Horn Silver Mine, Frisco, Utah

The Horn Silver mine is located in the town of Frisco, Beaver County, Utah, and during its heyday in the late 1870s, was one of the richest silver producing mines in the world.  This location is notable to fluorescent mineral collectors because it has also produced some of the most unique fluorescent sphalerite known.  The sphalerite of the Horn Silver mine is brightly fluorescent, and often responds to UV in a multitude of colors including orange, pink, red, blue, green, yellow, teal and others!  This material also shows bright and lasting phosphorescence.  It also displays the property of triboluminescence, emitting orange flashes of light when scratched with a sharp object.

 

This is a classic example of fluorescent sphalerite from the Horn Silver mine.  It contains grains of fluorescent sphalerite in a non-fluorescent limestone breccia.  The brightest fluorescence/phosphorescence is seen under long wave UV.  The size of this specimen is 63.7 x 47.6 x 39.0 mm, and it weighs 114 grams.

 

 

Enlarged views of same specimen.  Mouse over scrolling images for UV wavelength information.

Please reload

Recent GlowNotes Posts

Please reload

Visit the GlowNotes Blog to view more - educational posts, equipment, minerals, photography and displays

Related Posts:

Please reload

Email comments or suggestions:

Home

RSS Feed
  • reddit
  • Facebook Social Icon

Subscribe to our RSS (Real Simple Syndication) feed to get new posts delivered directly to your desktop!

Nature’s Rainbows is a non-commercial web site maintained entirely by volunteer hobbyists and contributors.  Our mission is to provide information about UV and luminescence, premium fluorescent mineral photos, and a fluorescent mineral database for the enjoyment of FL mineral collectors around the world.  Information on this web site is covered under a Creative Commons License.


Feel free to contact us with comments and suggestions.

Like us on Facebook!